Disclosed is an electrode patterning layer for use in the formation of an electrode pattern of any desired shape depending on the difference in wetting property of an electrode-forming solution used, which uses a highly reliable polyimide resin as an electronic material. An electrode patterning layer for use in the formation of an electrode pattern of any desired shape depending on the difference in wetting property of an electrode-forming solution used, electrode patterning layer being formed by irradiating a layer comprising a polyamic acid having the repeated unit represented by the general formula (1) or polyimide produced by dehydration and cyclization of the polyamic acid with ultraviolet lay to form a pattern: (1) wherein A represents a tetravalent organic group and B represents a divalent organic group in which one or more A's and B's may be used, and n is a positive integer, provided that at least one of A's is a tetravalent organic group having a alicyclic structure.